e-brick installation and user manual - GEW UV System v1.0

3.4. Connection to power supply
Warning! A qualified electrician must make the connection to the mains supply.
The 9/12/22kW e-Brick requires a 3-Phase mains supply with a Protective Earth connection
(3P+E); note that no neutral connection is made.
The 3.6kW e-Brick requires a single-phase mains supply with a Protective Earth connection.
All variants require:
1) Permanently installed wiring fed by a suitably rated Miniature Circuit Breaker (MCB) to protect
each phase of the incoming mains supply cable and allow isolation of an individual e-Brick. For
North America and Canada Moulded Case Circuit Breakers (MCCB) shall be used for branch
circuit protection.
2) A suitably rated supply disconnection device to allow isolation of the mains supply to the e-
Brick installation. It is recommended that this shall be easily accessible by the operator.
3.4.1. Essential electrical installation data
Refer to Table 3 for peak mains supply current, suggested minimum supply cable cross
sectional area and MCB ratings for e-Brick product variants. These recommendations are
in accordance with BS7671:2001 Table 4D2A reference method 11.
e-Brick variant Current / phase (A) Supply cable
size (mm 2 )
MCB rating (A)
3.6kW 20 4 20
9kW 20 4 25
12kW 25 4 25
22kW 57 16 63
Table 3: Supply connection specification
Advice! Every e-Brick system is supplied with an electrical wiring diagram containing system
specific installation information.
Advice! Electrical installation standards vary worldwide and local regulations shall be observed.
3.4.2. Residual current devices
The internal EMC filters of the e-Brick are designed with a maximum earth leakage of 20mA;
this should be taken in to account when specifying residual current protection devices.
3.5. General recommendations
If you experience difficulties in setting up this product, contact GEW at the address given at the
front of this manual. If in doubt, ask! We are always ready to help.
3.5.1. Installation
e-Brick systems should be installed by GEW service technicians or, alternatively, by GEW
factory trained personnel. To validate the system warranty, a system specific code must be
entered on completion of installation and commissioning. When a system has not been
commissioned by GEW, a message will appear on the HMI every 20 hours reminding the
customer that the system is not under warranty:
“SYSTEM NOT UNDER WARRANTY. PLEASE CONTACT GEW, TEL: +44 (0)1737 824510”
To validate the warranty, enter the password supplied by GEW service.
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